[mvapich-discuss] How do I force Infiniband use?

[brown wrap]

I have installed the software. I have a small test cluster set up. 5 compute nodes. I know that the Infiniband HBAs in two nodes don't respond to ib commands. When I run:
mpirun_rsh -np compute-0-2 ./cpi
I still get a response back, even though that node's IB is not working, so I think it is using IP. How can I force it to use Infiniband? Thanks. 

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